I think I found a Fossil

[mojjax]

It looks like a tiny clam in the little hole . The rock has Sedimentary lines on the side .
Should I smack it with a hammer - to see if there's more inside ??

 

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[funkman]

definately looks like a shell to me. If you did want to break it open maybe get a cold chisel or brick cutting chisel to help make sure you don't accidently break the fossil in the pic. Just a thought.

Funkman

 

[Monty]

It should be solid rock unless you can hear something rattling inside, or if it's extremely light for its size. Monty

 

[fortbball9]

awesome,very sweet looking

fortbball9

 

[DiverGuy83]

its an imprint of a shell i see them everywhere here in florida

 

[jgowans]

In PA we would find a lot of plant fossils in the sandstone. Being softer rock it was easy to hammer the side edge and get it to crack along the fossils. You might want to just leave yours though. It adds a little mystery to be able to peek into the past......

 

[GpSnoopy]

Nice sharp impression. The "hole" is most likely from the original shell which dissolved over the eons. Think of a chocolate bunny put into cement and left to harden. Theoretically, over time the actual chocolate will dissapear, but leave a void with a perfect impression of the bunny shape. Now, slice that cement up in a few centuries and you will have someone wonder why there is a hole with a smooth outline of a bunny in it.......

And yes, it was a crude example, have no idea if chocolate would actually dissolve in concrete, but it was for the general idea.

 

[The Monk]

Now, slice that cement up in a few centuries and you will have someone wonder why there is a hole with a smooth outline of a bunny in it.......

 

[trikikiwi]

GpSnoopy, Classic

mojjax, only smash that open if you're really hungry
That would have 'pride of place' amongst my (unfortunately minimal) fossil collection.
You might also actually have the original 'hole' that the little critter made in the sediments he or she lived in


from here http://www.palaeos.com/Invertebrates/Molluscs/Bivalvia/Bivalvia.html

Fascinating creatures, which reminds me, the green-lipped mussels tasted good for lunch today

Mike

 

[natro120]

Diverguy and GpSnoopy are correct. It is an imprint of a shell (most likely something related to a scallop or pecten in comparison to a clam due to the rib lines going outward from the apex instead or horizontal to it.) that was once cemented into the rock but the calcium has been dissolved over time. You may actually have the other half of the shell still embedded below some of the rock. Often with fossilized shellfish, when they died over the years the inside would fill with sediment and then harden. Fun stuff. It's a nice rock too. Put it on your coffee table or a bookshelf, its nice to look at.